@Pqfan...sorry that has happened to you. Do you have a best buy store near you that you can just call them and ask? They would know based on what type of computer you have. Good luck.
If you are handy with the laptop or know someone that is check out the videos on Youtube. You may just find the right fix. Just search laptop keys not working.
Shut down the laptop, removed battery and cable for a moment, press and hold the start button for 60 seconds... and replace the battery.. start the lap top..